Interlocking sectional tile baffle



May 13, 1924 1,493,728 s. F. BROOKS INTERLOCKING SECTIONAL TILE BAFFLE Filed Dec. 9, 1920 2 Sheets-Sheet. 1

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May 13, I924.

Fatente SAMUEL F. BRQOKS, 0F INDIANAFOLIS, INDIANA.

INTMLO'CKING SECTIONAL TILE BAIFFLE.

Application filed December 9, 1920. Serial No. 429,516.

To all whom it may concern:

Be it known that I, SAMUEL F. BROOKS, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a certain new and useful Improvement in Interlocking Sectional Tile Battles, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to interlocking sectional tile baflies and particularly to baffle walls such as are placed in boilers to overlie the rows of tubes which may be either steam or water.

In the use of baflies of this type and particularly in water tube boilers it has been quite customary to cement the tiles in place so as to prevent the escape of gases upwardly between the adjacent blocks. .These' blocks are exposed to great variations in degrees of temperature resulting in expansion and contraction thereof so that in a short time the cement is broken, the blocks separated, and thus cracks are formed through which the gases may readily escape upwardly without producing the most effec; tive results.

One of the features of my invention isthe provision of a sectional tile bafiie structure in which the tiles interlock along one row of the meeting edges and a slidable lap joint along the other meeting edges thereby providing a bafiie wall in which it is not essential that it be cemented and in which the lap joint permits expansion and contraction without separation of the blocks.

In the accompanying drawings I have shown several illustrations of my invention in which- Fig. 1 is a longitudinal cross section of a K of laying the tiles upon the tubes;

Fig. 6 is a view looking down upon the upper edge of the tiles and tubes of Fig. 5 showing the preferred arrangement of the slidable lap joint;

Figs. 7 8 and 9 are plan, bottom, and side views of a modified form of tile;

'place.

a Figs. 10, 11 and 12 are plan, bottom and side views of a modified form of tile adapted to cooperate with the tile of Figs. 7 8 and 9, one tile containing the grooves and the 60 other the tongues;

Fig. 13 is a perspective view showing the preferred form of several of the bafiie tiles and a method of mounting the same, one of the sections being cut away to more clearly 5 show the slidable joint and nonleak feature.

Referring now more in' detail to the preferred form of my invention as shown in Figs. 1 to 6 inclusive a well known type of boiler is shown having the usual mud, steam and water drums connected by the water tubes 16 which are arranged in three banks. Where the banks extend at a suificient an le to readily support the tile I place bafiie wa s such as A and B thereon. The preferred type of tile is illustrated in Figs. 2 to 6 wherein I preferably use tongues and grooves 1718 respectively, so that they may interlock as shown in Figs. 1 and 5,

thereby more effectively closing up the joint and also more effectively hold the tile in Now in order to permit for expansion and contraction of the blocks I rovide a lap joint which is also a sliding oint as shown at 19 and 20, thereby permitting a sliding movement of the blocks without opening up a space between them through which the heated gases might escape. By

this arrangement of joints the tiles may be ac the boiler or the tile staggered, that is, the

vertical rows may be in alignment but the joints transversely would not line up.

Theseams may be cemented if desired and even though cemented, should the cement become loosened from expansion or we contraction of the tiles the interlocking and overlapping joints still will prevent leakage of the heated gases therethrough.

In order to prevent a too rapid movement of the gases so as to more effectively use not them, I preferably recess the faces of the tiles as shown at 21. By the use of these recesses the gases, instead of. having a smooth surface along which they would flow unhindered, are intercepted in their flow so are that they remain longerin contact with the tubes, the recesses causing a more efiectlve intermixing of the gases and thereby better combustion.

It frequently happens that Where tile are used for baflle Walls in boilers they become cracked and broken. With my.improved arrangement, should one of the blocks become broken so as to require its removal, it is only necessary to shove the tile above it upwardly far enough to clear the interlocking tongue and groove joint at which time the broken tile may be readily replaced as it may be easily lifted directly out and a new one inserted.

In Figures 7, 8, 9 and Figures 10, 11 and 12 I have shown amodified form of interlocking tongue and groove joint in which the grooves are placed in opposite ends of one tile as shown in Figs. 7, 8 and 9, and the tongues at opposite ends of the next row of tile as shown in Figs. 10, 11 and 12. Thus the two tiles are arranged in alternate rows.

Although for the purposes of illustration I have shown several forms of my invention it is apparent that changes and modifications will readily occur to those skilled in the art, and therefore I do not desire to be limited to the structure shown ;and described, but aim to cover all that which comes within the spirit and scope of the appended claims.

I claim:

1. A sectional tile bafile comprising a plurality of longitudinal and transverse rows of tiles interlocking along one row of meeting edges and having transversely and longitudinally slidable lap joints along the other meeting edges, the lap joints forming a continuous leak-proof joint throughout the meeting edges. v

2. A sectional tile battle comprising a plurality of longitudinal and transverse rows of tiles having tongue and groove meeting edges along one direction and transversely and longitudinally slidable lap joints along the other meeting edges, the lap joints forming a continuous leak-proof joint throughout the meeting edges.

3. A sectional tile baflle for water tube boilers comprising a plurality of adjoining rows of rectangular sections of identical design having staggered slidably related meeting edges which permit lateral and longitudinal contracting and expanding movement of the sections but maintain a transversely staggered leak-proof joint throughout the meeting edges of the rows.

4. A sectional tile bafile comprising a plurality of adjacently disposed rectangular sections interlocking along horizontal meeting edges and having transversely and longitudinally slidable lap joints along the vertical meeting edges, the lap joints forming a continuous leak-proof joint throughout the meeting edges.

5. A sectional baffle comprising a plurality of adjacently disposed rectangular sections having horizontal and vertical meeting edges, one line of meeting edges having interlocking joints and the other transversely and longitudinally slidable lap joints, the lap joints forming a continuous leak-proof joint throughout the meeting edges.

6. A sectional tile baffle comprising a plurality of adjoining rows of rectangular sections, the meeting edges of adjoining rows in one direction forming a continuous laterally and longitudinally slidable lap joint. and the meeting edges of adjoining rows in the other direction being interlocking, so as to provide a staggered joint at all adjoining points throughout both rows.

In witness whereof, I hereunto subscribe my name this 1st day of Dec. A. D., 1920.

SAMUEL F. BROOKS. 

